+
+# ifdef CONFIG_BF54x
+ {
+ unsigned uart_dma_ch_rx, uart_dma_ch_tx;
+
+ switch (uart->port.irq) {
+ case IRQ_UART3_RX:
+ uart_dma_ch_rx = CH_UART3_RX;
+ uart_dma_ch_tx = CH_UART3_TX;
+ break;
+ case IRQ_UART2_RX:
+ uart_dma_ch_rx = CH_UART2_RX;
+ uart_dma_ch_tx = CH_UART2_TX;
+ break;
+ default:
+ uart_dma_ch_rx = uart_dma_ch_tx = 0;
+ break;
+ };
+
+ if (uart_dma_ch_rx &&
+ request_dma(uart_dma_ch_rx, "BFIN_UART_RX") < 0) {
+ printk(KERN_NOTICE"Fail to attach UART interrupt\n");
+ free_irq(uart->port.irq, uart);
+ free_irq(uart->port.irq + 1, uart);
+ return -EBUSY;
+ }
+ if (uart_dma_ch_tx &&
+ request_dma(uart_dma_ch_tx, "BFIN_UART_TX") < 0) {
+ printk(KERN_NOTICE "Fail to attach UART interrupt\n");
+ free_dma(uart_dma_ch_rx);
+ free_irq(uart->port.irq, uart);
+ free_irq(uart->port.irq + 1, uart);
+ return -EBUSY;
+ }
+ }
+# endif